Asteroid 153 Hilda
Named after the daughter of astronomer Theodor von Oppolzer.
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This file is not available for download, but provided by the Alcyone Ephemeris Small Body Data File DVD.
| Classification | Main-belt Asteroid (Hilda) |
| Notes | Hilda gives its name to an asteroid group called Hilda asteroids (or shorter
Hildas). Hildas are locked in a 2:3 orbital resonance with Jupiter. |
Osculating Orbital Elements
| Epoch | 2453800,5 |
| Semi major axis | 3,9805 AU |
| Period [Julian yrs] | 7,942 Julian years |
| Inclination | 7,837 ° |
| Eccentricity | 0,1410 |
| Lon. of ascending node | 228,344 ° |
| Argument of perihelion | 41,898 ° |
| Passage of perihelion | 2007-Aug-03.825541 |
| Aphelion distance | 4,5418 AU |
| Mean anomaly | 295,983 ° |
Physical Data
| Radius | 85,32 km |
| Rotation period | 5,11 days |
| Absolute magnitude (H) | 7,48 |
| Magnitude Slope (G) | 0,15 |
| Color index (B-V) | 0,669 |
| Geometric albedo | 0,0618 |
| Spectral class | X |
Discovery Circumstances
| Discoverer | Johann Palisa |
| Discovered | 1875-11-02 |
Data File
| Data File Name | 153_Hilda.aed |
| Data File Date | 2006-12-22 |
| Data File Size | 2714 kB |
| Covered Period | 1800,00 - 2100,00 |
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